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Reading a syringe in poor light, and how to avoid needing to

Devices › Syringes & needles syringe units dead volume needle gauge & length worked example

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Solved by r.mensa in post #2

Syringe barrel size: common sizes are 0.3 mL, 0.5 mL, and 1.0 mL. Smaller barrels are more legible for small doses. Larger barrels hold larger volumes. Choose based on your dose. The answer changed when I changed how I was measuring, which was informative.

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c.rasmussenTL225 May 2026#1

Reading a syringe in poor light, and how to avoid needing to Writing it up because I had to work it out twice and would rather nobody else did.

The question about reading a syringe that I actually want answered is the second one below. The first is context and I have kept it short.

Both are stated with units, and I have said what I already checked so that nobody repeats it.

47 likes 2mo

r.mensaTL2 Solution1 Jul 2026#2

Syringe barrel size: common sizes are 0.3 mL, 0.5 mL, and 1.0 mL. Smaller barrels are more legible for small doses. Larger barrels hold larger volumes. Choose based on your dose.

The answer changed when I changed how I was measuring, which was informative.

12 likes 27d

titration_diaryTL3Regular28 Jul 2026#3

Answering the question the opening post raises rather than the one it answers.

Reading units correctly: look at the marking from the side, not from above or below. The bottom of the plunger tip is the reading. Parallax error (wrong angle) is a source of dosing error.

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